You want to look at the NameAbbreviator class. It has sub-classes that perform
the various styles of abbreviation.
Logback also has a name abbreviator where you specify a max length. Basically,
the algorithm is, a) always print the full class name, b) if the length is
large enough to contain the first letter of all the package names, include
them, c) if the length is large enough expand the last package name to its full
length, d) repeat c for each right-most package until the length would be
exceeded.
Following this pattern you might be able to achieve what you are looking for.
Unfortunately, the syntax Logback uses is exactly the same for what we use for
the number of items. To solve this I would probably use a syntax like
{length(10)} to use the algorithm above and create a MaxLengthAbbreviator.
For the specific syntax you are asking for, essentially you are trying to
declare the number of right-most packages that you want expanded with all the
others being a single character. So for that the syntax could be {right(1)}.
Mind you, these are just ideas. If you can come up with better algorithms or
pattern syntax, have at it!
Ralph
> On Aug 7, 2018, at 1:55 PM, Shawn Heisey <apa...@elyograg.org> wrote:
>
> On 8/7/2018 9:43 AM, Remko Popma wrote:
>> Feel free to submit a patch/pull request with unit tests! ;-)
>
> I will open an issue. I can certainly attempt a patch, but I can't make
> any guarantees. I have to *understand* the code before I can modify it!
> Since I have never looked at log4j code, I expect the road to
> understanding will not be short.
>
> What recommendations do you have about the precision specifier syntax to
> achieve output like o.a.s.c.SolrCore.Request?
>
> Thanks,
> Shawn
>
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